asn.dev

Observed topology

AS39737 Prime-Telecom-AS Prime Telecom srl

Unclassified ARIN

Upstreams 35 carry this network
Downstreams 90 this network carries
Adjacent (IPv4) 130
Adjacent (IPv6) 34
Upstream graph Who carries AS39737, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS39737 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 35

Networks observed carrying traffic for AS39737: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv6743
AS2914NTT America, Inc.TransitIPv4 IPv6631
AS6939Hurricane Electric LLCTransitIPv4 IPv6403
AS1299Arelion Sweden ABTransitIPv4 IPv6368
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6193
AS24482SG.GSHostingIPv4 IPv667
AS1836green.ch AGResidentialIPv4 IPv666
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv666
AS34019Hivane AssociationUnclassifiedIPv4 IPv666
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv666

All 35 upstreams →

Transit

Downstream networks

All 90

Networks for which AS39737 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS15471S.N. Radiocomunicatii S.A.UnclassifiedIPv4 IPv64,289
AS48955Internet Resources Management SRLUnclassifiedIPv4848
AS50369Safegrid Network SRLUnclassifiedIPv4596
AS49023INOVO SOLUTIONS SRLUnclassifiedIPv4571
AS50819Cloud Vault SRLUnclassifiedIPv4 IPv6355
AS34450Net Gate Telecom S.R.L.UnclassifiedIPv4 IPv6343
AS8614ITC Institutul Pentru Tehnica De Calcul SAUnclassifiedIPv4330
AS203919LUMADOCK LTDUnclassifiedIPv4295
AS25409Alsys Net SRLUnclassifiedIPv4 IPv6235
AS39464Star Design Connection SRLUnclassifiedIPv4235

All 90 downstreams →

Adjacency

Adjacent networks

All 133

Every AS seen directly next to AS39737 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv65,006
AS15471S.N. Radiocomunicatii S.A.UnclassifiedIPv4 IPv64,328
AS1299Arelion Sweden ABTransitIPv4 IPv62,967
AS50369Safegrid Network SRLUnclassifiedIPv41,381
AS6939Hurricane Electric LLCTransitIPv4 IPv61,342
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv61,151
AS48955Internet Resources Management SRLUnclassifiedIPv4848
AS2914NTT America, Inc.TransitIPv4 IPv6716
AS49023INOVO SOLUTIONS SRLUnclassifiedIPv4571
AS37100SEACOM LimitedUnclassifiedIPv4394

All 133 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you. Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.